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Si7050/1/3/4/5-A20

I²C Temperature Sensors

Silicon Labs

The Si705x Digital Temperature Sensors offer industry-leading low power consumption and high accuracy across the entire operating voltage and temperature range. These monolithic CMOS ICs feature a band-gap temperature sensor element, an analog-to-digital converter with up to 14-bit resolution, signal processing, calibration data, and an I²C interface. The patented use of novel signal processing and analog design enables the sensors to maintain their accuracy over a wide temperature and voltage range, while consuming very little current. The temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are interchangeable, with no recalibration or software changes required.

Datasheets:
Product Description

The Si705x devices are available in a 3x3 mm DFN package, and the industry-standard I²C interface can operate at up to 400kHz. Requiring just 195nA of average current when sampled once per second, the Si705x can operate for several years with just a single coin cell battery. The Si705x devices offer an accurate, low-power, factory-calibrated digital solution ideal for measuring temperature in applications ranging from HVAC/R and asset tracking to industrial and consumer platforms.

Features
  • High Accuracy Temperature Sensors:
    • Si7051: ±0.1°C (maximum)
    • Si7053: ±0.3°C (maximum)
    • Si7054: ±0.4°C (maximum)
    • Si7055: ±0.5°C (maximum)
    • Si7050: ±1.0°C (maximum)
  • Wide operating voltage (1.9V to 3.6V)
  • –40°C to +125°C operating range
  • Accuracy maintained over the entire operating temperature and voltage range
  • Low Power Consumption
  • 195nA average current @ 1 Hz sample rate
  • 14-bit resolution
  • Factory calibrated
  • I²C interface
  • 3 x 3mm DFN package
Applications:
  • HVAC/R
  • Thermostats
  • White goods
  • Computer equipment
  • Portable consumer devices
  • Asset tracking
  • Cold chain storage
  • Battery protection
  • Industrial controls
  • Medical equipment
Specifications
  • Features:Standby Mode
  • Mounting Type:Surface Mount
  • Operating Temperature:-40°C ~ 125°C
  • Output Type:I²C
  • Package / Case:6-WDFN Exposed Pad
  • Resolution:14 b
  • Sensing Temperature - Local:-40°C ~ 125°C
  • Sensor Type:Digital, Local
  • Supplier Device Package:6-DFN (3x3)
  • Voltage - Supply:1.9 V ~ 3.6 V
Parts

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SI7051-A20-IMSI7051-A20-IMSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7053-A20-IMSI7053-A20-IMSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7055-A20-IMRSI7055-A20-IMRSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7055-A20-IMSI7055-A20-IMSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7051-A20-IMRSI7051-A20-IMRSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7050-A20-IMSI7050-A20-IMSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7054-A20-IMSI7054-A20-IMSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7050-A20-IMRSI7050-A20-IMRSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS
SI7053-A20-IMRSI7053-A20-IMRSENSOR DIGITAL -40C-125C 6DFN Digital, Local-40°C ~ 125°C-I²C6-WDFN Exposed PadRoHS

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Associated Product
Silicon Labs Si705x USB Dongle Evaluation Kits
Category: Semiconductors, Development Tools-Programmers, Development Systems-Evaluation Boards-Sensors